Daytime Noise Monitoring Results -- Normal weekday

Station M3, Kwan Yick building(*)

Date

Start Time

End Time

Weather

Noise level (dB(A)), 30 min

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

01-Apr-11

10:23

10:53

Sunny

69

70

67

Lifting, excavation work

Mainly traffic noise

-

20.5

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

07-Apr-11

10:30

11:00

Fine

69

71

67

Lifting, excavation work

Mainly traffic noise

-

21.8

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

13-Apr-11

14:22

14:52

Sunny

70

72

67

Lifting, excavation work

Mainly traffic noise

-

23.0

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

19-Apr-11

10:25

10:55

Sunny

68

69

66

Lifting, excavation work

Mainly traffic noise

-

23.6

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

26-Apr-11

15:10

15:40

Sunny

68

69

65

Lifting

Mainly traffic noise

-

24.2

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Min.

68

Remark: (*): The data were provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract

Max.

70